MSRF1560G Equivalent & Substitute Parts

Part Overview

The MSRF1560G is a general-purpose rectifier diode manufactured by onsemi, rated for 600 V DC reverse voltage and 15 A average rectified current in a TO-220FP through-hole package. This component is classified as obsolete, indicating that direct procurement from the original manufacturer may be limited or unavailable. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain reliability, and support ongoing production or repair requirements for applications utilizing this rectifier diode.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	600	V
Current - Average Rectified (Io)	15	A
Voltage - Forward (Vf) (Max) @ If	1.8 V @ 15 A	V
Reverse Recovery Time (trr)	45	ns
Current - Reverse Leakage @ Vr	15	µA @ 600 V
Speed Classification	Fast Recovery ≤ 500ns, > 200mA (Io)	—
Mounting Type	Through Hole	—
Package / Case	TO-220-2 Full Pack	—
Operating Temperature - Junction	-65 to 150	°C
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution of the MSRF1560G is determined by the following critical electrical and mechanical parameters:

Primary Substitution Criteria:

Voltage - DC Reverse (Vr) (Max): Must equal or exceed 600 V
Current - Average Rectified (Io): Must equal or exceed 15 A
Mounting Type: Must be Through Hole
Package / Case: Must be TO-220-2 Full Pack or compatible TO-220FP variant
Speed Classification: Must support Fast Recovery ≤ 500ns, > 200mA (Io)

Secondary Compatibility Factors:

Operating Temperature Range: Must support junction temperatures within or compatible with -65°C to 150°C
RoHS Compliance: Must meet ROHS3 or equivalent environmental standards
Reverse Recovery Time (trr): Should be ≤ 500 ns for fast recovery operation
Reverse Leakage Current: Should be ≤ 200 µA @ 600 V for acceptable leakage performance

Substitute parts are grouped into two categories based on current rating alignment:

Category 1 - Exact Current Match (15 A): Parts with 15 A average rectified current rating Category 2 - Higher Current Rating (≥ 20 A): Parts with current ratings exceeding 15 A, suitable for applications with higher current headroom

Parameter Comparison

Part Number	Manufacturer	Vr (Max) [V]	Io [A]	Vf (Max) [V]	trr [ns]	Ir @ Vr [µA]	Package	Temp Range [°C]	Status
MSRF1560G	onsemi	600	15	1.8 @ 15A	45	15 @ 600V	TO-220FP	-65 to 150	Obsolete
RFNL15TJ6SGC9	Rohm Semiconductor	600	15	1.3 @ 15A	160	10 @ 600V	TO-220ACFP	-55 to 150	Active
BYC15X-600,127	WeEn Semiconductors	500	15	2.9 @ 15A	55	200 @ 600V	TO-220FP	-55 to 150	Active
RFNL20TJ6SGC9	Rohm Semiconductor	600	20	1.3 @ 20A	180	10 @ 600V	TO-220ACFP	-55 to 150	Active
BYC20X-600PQ	WeEn Semiconductors	600	20	2.5 @ 20A	35	10 @ 600V	TO-220FP	-55 to 175	Active
RFNL10TJ6SGC9	Rohm Semiconductor	600	10	1.3 @ 10A	150	10 @ 600V	TO-220ACFP	-55 to 150	Active
BYC8X-600P,127	WeEn Semiconductors	600	8	1.9 @ 8A	18	20 @ 600V	TO-220FP	-55 to 175	Active
DHG5I600PM	IXYS	600	5	2.2 @ 5A	35	10 @ 600V	TO-220ACFP	-55 to 150	Active
FFPF10UA60ST	onsemi	600	10	2.3 @ 10A	120	100 @ 600V	TO-220F-2L	-65 to 150	Obsolete
RFNL5TJ6SGC9	Rohm Semiconductor	600	5	1.3 @ 5A	130	10 @ 600V	TO-220ACFP	-55 to 150	Active
RFV12TJ6SGC9	Rohm Semiconductor	600	12	2.8 @ 12A	45	10 @ 600V	TO-220ACFP	-55 to 150	Active

Engineering Selection Recommendations

Primary Substitute - Exact Current Match:

The RFNL15TJ6SGC9 (Rohm Semiconductor) is the recommended primary substitute for the MSRF1560G. This part meets all critical electrical parameters: 600 V reverse voltage rating, 15 A average rectified current, TO-220ACFP package compatible with TO-220FP footprints, and fast recovery operation. The part is currently in active production status with ROHS3 compliance and unlimited moisture sensitivity level (MSL 1). Although the reverse recovery time (160 ns) is longer than the original (45 ns), it remains within the fast recovery classification (≤ 500 ns). Forward voltage is lower (1.3 V vs. 1.8 V), resulting in reduced power dissipation.

Secondary Substitute - Higher Current Rating:

The BYC20X-600PQ (WeEn Semiconductors) and RFNL20TJ6SGC9 (Rohm Semiconductor) are suitable alternatives for applications requiring higher current capacity. Both parts provide 600 V reverse voltage and 20 A average rectified current in TO-220FP compatible packages. The BYC20X-600PQ offers superior reverse recovery time (35 ns) and extended operating temperature range (up to 175°C). The RFNL20TJ6SGC9 maintains Rohm's consistent forward voltage characteristic (1.3 V) and is in active production.

Alternative for Lower Current Applications:

If the application circuit can tolerate reduced current capacity, the BYC8X-600P,127 (WeEn Semiconductors) provides 600 V / 8 A operation with excellent reverse recovery time (18 ns) and extended temperature range (175°C maximum junction temperature). This part is suitable for designs with current margins below 15 A.

Compliance and Production Status:

All recommended substitutes are in active production status with ROHS3 compliance or equivalent environmental certifications. The MSRF1560G and FFPF10UA60ST are obsolete; therefore, active-status alternatives ensure long-term supply chain availability and support for future production requirements.

Frequently Asked Questions (FAQ)

Q: Can the RFNL15TJ6SGC9 directly replace the MSRF1560G in existing circuit boards?

A: The RFNL15TJ6SGC9 is electrically compatible with the MSRF1560G for the same 600 V / 15 A application. Both parts use TO-220 package variants with identical pin configurations and thermal characteristics. The TO-220ACFP package is mechanically compatible with TO-220FP footprints. Verification of PCB layout and thermal management is recommended for high-power applications.

Q: What is the difference between TO-220FP and TO-220ACFP packages?

A: Both TO-220FP and TO-220ACFP are TO-220 full-pack variants with isolated tabs, suitable for through-hole mounting. The primary difference is manufacturer-specific designation; both packages provide equivalent mechanical and thermal performance for rectifier diode applications. Pin spacing and mounting hole dimensions are identical.

Q: Why does the RFNL15TJ6SGC9 have a longer reverse recovery time (160 ns) than the MSRF1560G (45 ns)?

A: Reverse recovery time varies based on semiconductor manufacturing technology and doping profiles. The RFNL15TJ6SGC9 remains classified as fast recovery (≤ 500 ns) and is suitable for standard rectification applications. Applications requiring sub-50 ns recovery times should consider the BYC20X-600PQ (35 ns) or BYC8X-600P,127 (18 ns) alternatives.

Q: Is the BYC15X-600,127 a suitable substitute despite its 500 V rating versus the 600 V requirement?

A: The BYC15X-600,127 has a maximum reverse voltage rating of 500 V, which is below the MSRF1560G specification of 600 V. This part is not recommended for applications requiring the full 600 V rating. Use only if the actual circuit operating voltage is confirmed to be ≤ 500 V.

Q: What are the thermal considerations when selecting a substitute?

A: The MSRF1560G operates over -65°C to 150°C junction temperature. Most active substitutes operate over -55°C to 150°C, which is acceptable for most industrial applications. The BYC20X-600PQ and BYC8X-600P,127 extend to 175°C maximum, providing additional thermal margin. Forward voltage differences (1.3 V to 2.9 V) directly affect power dissipation; lower forward voltage reduces heat generation.

Q: Are all substitute parts RoHS compliant?

A: All recommended substitute parts are ROHS3 compliant or RoHS compliant, meeting environmental and hazardous substance restrictions. The MSRF1560G is ROHS3 compliant; therefore, substitutes maintain equivalent environmental compliance standards.

Q: Can the RFNL20TJ6SGC9 (20 A) be used in place of the MSRF1560G (15 A)?

A: Yes, the RFNL20TJ6SGC9 is electrically and mechanically compatible with the MSRF1560G. The higher current rating (20 A vs. 15 A) provides additional design margin and does not create compatibility issues. The part operates at the same 600 V reverse voltage and maintains fast recovery characteristics. This substitution is suitable for applications where increased current capacity is beneficial or required.

Q: What inventory status should be considered when selecting a substitute?

A: The MSRF1560G is obsolete with limited inventory (1900 pcs). All recommended active substitutes have substantial inventory availability: RFNL15TJ6SGC9 (1210 pcs), BYC20X-600PQ (13148 pcs), RFNL20TJ6SGC9 (1896 pcs), and BYC8X-600P,127 (4400 pcs). Active-status parts ensure reliable long-term supply for production and repair applications.

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